Ford Repair: Altenator wont kick on, wont kick, luck chris

Question
I have replaced the altenator and battery twice in 2 days and im still getting the battery light and the altenator wont kick on.  we have checked the fuses and power to the altenator and all test good but it just wont kick on. im running off straight battery please help...

Answer
Hey there, well i need to know what kind of vehicle this is, and the main power cable should be checked for power as well. the PCM regulates altenator output on most newer vehicles so you have to check power input to the altenator connector as well. BUt i need to statr off with the kind of vehicle and what engine it is equiped with to help you any further,
good luck
Chris P